baber/WOPTO huggingface dataset:
Patent CA-2106697-A1 (CA)
Title: Light scattering polystyrene molding compounds, and molded articles produced therefrom
Inventor: SIOL WERNER
IPC: C08L33/10
Filed: 1993-09-22
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to light-scattering polystyrene molding compounds comprising 40-99.9 weight % of a (optionally impact-strength-modified) polymeric matrix phase comprised of at least 50 weight % styrene and or substituted styrenes, or a mixture thereof; and 0.1-60 weight % of scattering bodies comprising a copolymer comprised of: p1)  20-89.5 parts by weight (pbw) methyl methacrylate, ethyl methacrylate, or a mixture thereof; p2)  10-80 pbw of at least one monomer of formula (I)                         (I), where R1 represents a C3-24 alkyl group; and p3)  0.5-10 pbw of at least one crosslinking monomer with two or more ethylenically unsaturated, radically polymerizable groups; and p4)  0-10 pbw of additional ethylenically unsaturated monomers which are radically copolymerizable with (p1), (p2), and (p3); wherein the sum of the amounts of the monomers (p1), (p2), (p3), and (p4) is 100 pbw.
Patent CA-2107924-A1 (CA)
Inventor: VOS RICHARD V
IPC: F16K17/04
Filed: 1993-10-07
Abstract: ABSTRACT OF DISCLOSURE          A control valve for use in a swimming pool containing an automatic pool cleaner is described.   The valve comprises a main water passage having an inlet port in a cranked inlet portion and an outlet port.  A valve chamber extends from the main passage.  It has a relief valve and an outlet through its side wall.  A by-pass passage connects the outlet to the main water passage.          A valve member sensitive to the pressure in the by-pass passage is located within the chamber and is biassed by a spring into a closed position to close off the relief port.  When the pressure in the by pass passage falls, the valve member is drawn into the open position in which it controls the opening of both the relief valve and the outlet in dependence upon its position.
Patent CA-2108501-A1 (CA)
Title: Combined cooling and heating process and device for conditioning a room
Inventor: ADOLPH ULRICH
IPC: F25B9/00
Filed: 1993-10-15
Abstract: ABSTRACT OF THE DISCLOSURE A combined cooling and heating process for conditioning a room, and a device for carrying out the process, particularly for use in railroad passenger coaches. When the room is to be heated and no longer cooled, two valves are switched so that the process air flows through the units required for cooling, such as a heat exchanger and regenerator, without heat exchange. The air heated by the compressor arrives in the useful heat exchanger via a bypass line. The air which is cooled in the useful heal exchanger, but which is still under pressure, is directed via another bypass line to a turbine, where it is expanded and released into the atmosphere. In so doing, the air of the room to be heated is sucked in by a pre-compressor.
Patent CA-2108691-A1 (CA)
Title: Injection device
Inventor: MICHEL PETER
IPC: A61M5/24
Filed: 1993-02-12
Abstract: An injection device is disclosed, into which an ampule with a piston and an injection needle may be interchangeably set. It has an actuating arrangement essentially composed of an operating knob, a driving element, a guiding element and a driven member, preferably having a rod and a flange. The driven member is rotatably secured to the guiding element fixedly arranged in the device and seats with its thread in a female thread of the driving element that can be axially moved and twisted by manually operating the operating knob.      When the operating knob is twisted, the driven element is moved forward and pushes the piston forward during the following axial displacement, so that injection is the result. In the disclosed device, the fixed guiding element is located before that axially movable driving element. The length of the operating arrangement is therefore shorter than in state-of-the-art injection devices, so that a larger maximal dosis may be injected with a device having the same overall length. This device is useful for medical applications.
Patent CA-2108846-A1 (CA)
Inventor: MOHLA PREM P
IPC: B22D1/00
Filed: 1993-10-20
Abstract: ABSTRACT OF THE DISCLOSURE      There are disclosed a system and method of treating molten motal through the use of molding assembly including a basin, a reaction chamber and a consumable plug that are arranged in a manner to enhance casting quality.
Patent CA-2109203-A1 (CA)
Title: Stable, one-component, curable epoxy/polyamide resin dispersions
Inventor: SMITH GEORGE A
IPC: C08G69/48
Filed: 1992-04-30
Abstract: Stable, one-component, curable epoxy resin and polyamide resin dispersions and methods for their preparation, wherein the polyamide resin is a polymerized fatty acid polyamide resin; the curable compositions, used as laminating agents, adhesives, potting and casting resins, show improved shelf life.
Patent CA-2109546-A1 (CA)
Title: Solution bag with plastic connecting tube
Inventor: SPENCER DUDLEY W C
IPC: A61J1/10
Filed: 1993-11-18
Abstract: SOLUTION BAG WITH PLASTIC CONNECTING TUBE Abstract of the Disclosure A solution bag for containing consumables is made of a plastic material which is closed around its edges and has a sealed access edge.  A plastic discharge tube is mounted at the access edge and communicates with the interior of the bag.  The tube is an elongated tube which would be connected at a dispensing site so that the contents may flow from the bag into the dispensing site.          The tube has a terminal seal at its end remote from the access edge.   The tube includes as a characteristic feature of the invention a safety seal located between the access edge and the terminal seal.
Patent CA-2110183-A1 (CA)
Title: Work platform system for multi-storey buildings
Inventor: SCHMIDT HANS H
IPC: B66B9/04
Filed: 1992-05-21
Abstract: A work platform system for the perimeter face of a multi-storey building (12), having a plurality of support frames (10) positioned and attached via support structures (11) on the roof (12a) of the building and extending in cantilever style beyond the perimeter of the building, with support members (18) suspending a series of work platforms from the support frames down the perimeter of the building. Jack means (16) either screw type jacks, or hydraulic or pneumatic jacks, being selectively coupled between the support frames and the platform or platforms to incrementally raise or lower the work platform or platforms relative to the perimeter face of the building.
Patent CA-2110224-A1 (CA)
Title: Method of desulfurization of town gas
Inventor: MASUDA MASATAKA
IPC: C10L3/10
Filed: 1993-11-29
Abstract: ABSTRACT OF THE DISCLOSURE       A method of desulfurization of town gas is disclosed.       The method of desulfurization of town gas of the invention is a method for desulfurizing town gas not containing hydrogen gas chracterized in that the desulfurization is carried out by adding hydrogen to the town gas, and by using copper-zinc desulfurizing agnet prepared by co-precipitation method.  According to the invention, town gas desulfurlzed at high degree can be obtained stably for a long period of time.
Patent CA-2111177-A1 (CA)
Inventor: HOAG ROBERT L
IPC: F16L57/00
Filed: 1993-12-10
Abstract: A hose jacket for protecting a flexible resilient fluid conveying hose from external damage comprises a plurality of tubular segments formed of a synthetic resin that fit over the hose in end-to-end fashion with the segments having internal and external tapered surfaces at opposite ends, with the internal tapered surface of one segment mating with the external tapered surface of the adjacent segment so as to facilitate articulation of the hose and hose jacket while limiting gapsbetween the adjoining hose jacket segments.  Connector fittings on the hose retain the hose jacket on the hose.  A compression spring between the hose jacket and the hose fitting can be used for resiliently urging the segments together.
Patent CA-2114032-A1 (CA)
Title: Fiber optic winding
Inventor: BERGH RALPH A
IPC: G01C19/72
Filed: 1992-11-24
Abstract: In an optical fiber coil arrangement for use in rotation sensors, for example, errors resulting from axial and/or radial time varying temperature gradients can be minimized ar substantially eliminated by employing reverse quadrupoles for the sensor coil. One of the quadrupoles is wound in a + - - + winding configuration. However, the next adjacent quadrupole is wound in a - + + - winding configuration. This reverse quadrupole arrangement substantially eliminates radial time varying temperature gra-dient dependent errors and reduces axial time varying temperature gradient dependent errors. The axial time varying temperature gradient dependent errors can be substantially eliminated by winding a reverse octupole arrangement. Accordingly, a reverse oc-tupole arrangement is wound with a + - - + - + + - - + + - + - - + winding configuration. Alternatively, the axial time vary-ing temperature gradient dependent errors can be substantially eliminated by providing extra lengths of the "+" and "-" ends which are axially displaced so as to substantially eliminate this axial time varying temperature gradient dependent error.
Patent CA-2114203-A1 (CA)
Title: Rail lubricating device for railway vehicles
Inventor: LEWALL BERNARD C
IPC: B61K3/02
Filed: 1994-01-25
Abstract: A lubricating device for mounting on a railway vehicle for lubricating flanges of wheels on the railway vehicle and a contact side of an outside rail, when the railway vehicle rounds a lefthand curved track or a righthand curved track is provided.  The lubricating device comprises a shallow V-shaped chamber liquid switch positioned vertically to the railway vehicle with a right arm and a left arm extending in a plane perpendicular to a line of travel of the railway vehicle.  There is a lefthand electrical contact at the top of the lefthand arm and a righthand electrical contact at the top of the righthand arm with a common electrical contact at the base of the chamber.  The chamber contains an electrical conductive   liquid at a sufficient height such that a side force representing a predetermined centrifugal force from the railway vehicle rounding a curved track, causes the liquid to rise in either the lefthand arm to contact the lefthand electrical contact and close a lefthand electrical circuit or to rise in the righthand arm to contact the righthand electrical contact and close a righthand electrical circuit.  The lefthand electrical circuit activates a righthand lubricating pump to lubricate a contact side of an outside rail of a righthand curved track, and the righthand electrical circuit activates a lefthand lubricating pump to lubricate a contact side of an outside rail of a lefthand curved track.
Patent CA-2116710-A1 (CA)
Title: Method for production of lactic acid and lactic esters
Inventor: KUMAGAI AKIRA
IPC: C12P7/56
Filed: 1994-03-01
Abstract: ABSTRACT OF THE DISCLOSURE        A method for producing a lactic ester inexpensively by microorganic fermentation of lactic acid with a simple apparatus  is provided,  which method effects adjustment of the  pH  of  a  culture  medium  during  the  course  of  the fermentation  with  ammonia  and,  after  the  end  of  the fermentation, recovers the ammonia for reuse to lower the cost required for the fermentation and decrease the amount of a by-product of fermentation.        In a process involving fermentation of lactic acid with  a  microorganism,  a method  for  the  production  of  a lactic ester which comprises carrying out the adjustment of pH of a culture medium undergoing the fermentation of lactic acid with ammonia,  adding an alcohol having four or five carbon atoms to at  least one  solution  selected from the group consisting of a solution of ammonium lactate obtained by  the  fermentation,  the  concentrate  of  the  solution  of ammonium lactate mentioned above, and the solution resulting from  separation  of  solid  substances  including  the microorganic cells used for the fermentation from either of the  solutions and  heating  the  resultant  mixture  thereby inducing dehydration and esterification of lactic acid with the alcohol and, at the same time, effecting liberation and recovery  of  ammonia,  and  adding  a  mineral  acid  to  the solution obtained by the esterification reaction and heating and dehydrating the resultant mixture  in an acidic  state thereby promoting and completing the esterification of the lactic acid with the alcohol.
Patent CA-2117060-A1 (CA)
Title: Safety cannula
Inventor: TARTAGLIA JOSEPH M
IPC: A61M37/00
Filed: 1993-06-25
Abstract: A coupling system (10) for transferring fluids from a medicament-con-taining cartridge to an injection site comprises a fluid flow channel, a blunt cannula (16), defining the distal end of the fluid flow channel (14), a needle cannula (18) defining the proximal end of the fluid flow channel (12) and means for fixedly connecting the needle cannula (18) to the blunt cannula (16).
Patent CA-2119320-A1 (CA)
Title: Composite panels having two outer layers and a core
Inventor: EHRAT RAINER
IPC: B32B27/20
Filed: 1994-03-17
Abstract: Composite panels with high fire-proofing capacity have two outer layers and a core that features a core mixture containing aluminium hydroxide in compacted form, lightweight fillers, in some cases fine grained or splintery aluminium hydroxide, as desired magnesium hydroxide and polymer-based binding agents. The composite panels are suitable e.g. as facade panels for building constructions.
Patent CA-2120459-A1 (CA)
Title: Apparatus for disinfection of a sanitary facility or sanitary equipment
Inventor: STENBERG KAJ
IPC: E03C1/046
Filed: 1994-03-31
Abstract: ABSTRACT            An apparatus for showering and disinfection of a sanitary facility includes a first shower (20), a first operating device (22) for opening or closing the supply of liquid to the first shower, and a first conduit (24) for supplying water to the shower. A tank (25) is disposed in the first conduit (24) and is connected, via a first inlet pipe (24a) of the first conduit, to a supply pipe (30) and is connected by a second conduit section (24b), to the shower (20). The first conduit section (24) discharges in the tank (25) above a high-est permitted filling level, whereby there is created an air gap between liquid in the tank and the discharge (37) of the conduit sec-tion. Downstream of the air gap, a device (26) is coupled in for the supply of disinfectant to the storage space of the tank, or to the second conduit section (24b).        Fig. 1
Patent CA-2121536-A1 (CA)
Title: Control system for operating a comminuting machine
Inventor: DOPPSTADT WERNER
IPC: B02C18/14
Filed: 1994-04-18
Abstract: INVENTION: Control System For Operating A Comminuting Machine INVENTOR:  Werner Doppstadt ABSTRACT OF THE DISCLOSURE      The comminuting  machine  contains  two  disintegration shafts which comminute infed material. The two disintegration shafts are connected to respective pressure fluid operated drive  motors  which,  in  turn,  are  connected  to  respective pressure fluid main pumps like axial piston pumps drivingly coupled  to  a  prime  mover.  A  control  valve  acts  upon  an adjusting actuator for controlling the amount and the feed direction of pressure fluid delivered by the pressure flud main pumps and permit  independent control of  the pressure fluid  operated  drive  motors.  Pressure  sensing  means  are responsive to excess pressure in feed lines leading to the drive motors and cause transient reversals of the pressure fluid main pumps and drive motors for removing blockage of the disintegration shafts. After a preset number of reversals an alarm is triggered.
Patent CA-2125632-A1 (CA)
Title: Method for fabricating a pixelized phosphor
Inventor: TRAN NANG T
IPC: G21K4/00
Filed: 1994-06-10
Abstract: ABSTRACT OF THE DISCLOSURE A process for fabricating a pixelized phosphor having a space between the pixels in the range of about 0.5-25 microns, the process comprising the steps of:     (a)  depositing a phosphor on a support; (b)  exposing the deposited phosphor to a source of electromagnetic radiation through a mask thereby ablating the phosphor segmentally, resulting in a series of structures in both said X and Y directions to produce an array of pixelized phosphors separated by slots;     (c)  filling the resulting slots between the pixelized phosphors with phosphor material of the same or different composition as utilized in step (a) such that each of the pixelized phosphors on the support are separated by a width of from about 0.5-25 microns; and (d)  optionally, planarizing the pixelized phosphors.
Patent CA-2128543-A1 (CA)
Title: Straight bore metal-to-metal wellborne seal apparatus and method of sealing in a wellbore
Inventor: MELENYZER GEORGE J
IPC: E21B33/12
Filed: 1993-01-26
Abstract: A seal apparatus (11) is provided for use in a subterranean wellbore having a wellbore tubular (13) disposed therein. The wellbore tubular defines a wellbore surface (15). A  conveyance tubular (17), is provided, which is positionable within the subterranean wellbore at a selection location relative to the wellbore surface. A sealing ring (19) is provided, and disposed about at least a portion of the conveyance tubular. The sealing ring has a first surface (31), proximate the conveyance tubular and a second surface (33) which is removed in distance from the conveyance tubular. The second surface defines a sealing surface, and includes a plurality of portions (91, 93, 97, 101, 103), with selected ones of the plurality of portions of the sealing ring extending radially from the conveyance tubular in at least one radial dimension. The selected portions define at least one metal seal point for selectively and sealingly engaging the wellbore surface.
Patent CA-2129117-A1 (CA)
Inventor: WHITE MARK D
IPC: C12Q1/30
Filed: 1993-01-28
Abstract: The invention describes biological assays in which hydrogen peroxide is used as an oxidizing agent, or wherein hydrogen peroxide is used to oxidize a dye or other intermediate to generate a detectable species. The stability of the hydrogen peroxide in the presence of at least one other enzyme which decomposes hydrogen peroxide is enhanced by the addition of a suitable inhibitor for the enzyme and the inhibitor does not substantially inhibit enzymes used in the assay. When catalase is the enzyme to be inhibited, catalase inhibitors that can be used in the biological systems include hydroxylamine sulfate. The enzyme inhibitor can be incorporated in an integral analytic device.
Patent CA-2131507-A1 (CA)
Inventor: CHANDROSS EDWIN A
IPC: G03F7/039
Filed: 1994-09-06
Abstract: Polymers suitable for chemically amplified resists based on styrene chemistry are advantageously formed with a meta substituent on the phenyl ring of the styrene moiety. Additionally, polymers for such applications including, but not limited to, meta substituted polymers are advantageously formed by reacting a first monomer having a first protective group with a second monomer having a second protective group. After polymerization, the second protective group is removed without substantially affecting the first protective group. For example, if the first protective group is an alkoxy carbonyl group, and the second protective group is a silyl ether group, treatment with a lower alcohol with trace amounts of acid transforms the silyl group into an OH-moiety without affecting the alkoxy carbonyl group.
Patent CA-2132412-A1 (CA)
Title: Gantry-style apparatus for positioning a working member with respect to a plurality of "x" and "y" coordinate positions
Inventor: DWORKOWSKI ROBERT
IPC: B23Q3/00
Filed: 1994-09-19
Abstract: A gantry-style apparatus for positioning a working member with respect to plurality of "X" and "Y" coordinate positions is described which includes a pair of parallel spaced apart "X" support  members  defining  a  plurality of  "X"  coordinate positions and a "Y" support member defining a plurality of "Y" coordinate  positions.    The  "Y"  support  member  extends transversely across the "X" support members and has a first end, a second end and a mid-point between the first end and a second end.  A centre-pull "X" drive system is provided for moving the "Y" support member axially along the "X" support members.  A working member mounting is movably secured to the "Y" support member.  A "Y" drive system is provided for moving the working member mounting axially along the "Y" support member.  The "Y" support member is of a length which is greater than the spacing between the "X" support members, such that the "Y" support member has a first overhanging portion adjacent the first end and a second overhanging portion adjacent the second end which extend past the "X" support members.  The apparatus as  described  is  particularly  suited  for  laser  cutting applications.
Patent CA-2132866-A1 (CA)
Title: Thermoforming and heat shrinking for forming containers
Inventor: FORTIN JOHN K
IPC: B29C49/00
Filed: 1993-03-24
Abstract: Apparatus and methods for the formation of biaxially oriented thermoplastic articles having flat surfaces or sharp contours, and the articles so produced. Such apparatus and method relate to the heat-shrinking of biaxially oriented intermediates (50) onto male forms (82) to produce articles (70) of exacting dimensions and flat surfaces or sharply defined contours. Such thermoplastic articles include autoclavable, heat fillable, heat stable, transparent PET containers (70).
Patent CA-2133480-A1 (CA)
Title: Eye goggles
Inventor: HASLBECK JOSEPH
IPC: A63B33/00
Filed: 1993-04-08
Abstract: The invention provides a pair of goggles (10) which can be used for a variety of recreational activities, such as swimming, cycling, ball games etc. The goggles comprise a pair of eyepieces and a nosepiece (15). Each eyepiece has a lens (17) and rim (18), each rim having a first connecting structure (33) and a headstrap connecting structure (24) to receive a headstrap. The nosepiece has a pair of second connecting structures (35, 39), and a bridge structure (38) disposed between and integral with the second connecting structure. Each second connecting structure (35, 39) is complementary to a respective first connecting structure (33) of the pair of eyepieces and forms an essentially rigid interfence fit therewith. Inner portions of the second connecting structure and outer portions of the bridge means are contiguous and inclined at respective angles to each other at a rigid joint which is sufficiently stiff to resist deformation when subjected to normal loads occurring during use. In this way, the angles between the second connecting structure and the outer portions of the bridge means remain essentially unchanged during normal use.
Patent CA-2134936-A1 (CA)
Title: Intelligent and all-bearing control circuit device of reverse osmosis drinking water machine
Inventor: HSU CHAO F
IPC: B01D61/12
Filed: 1994-11-02
Abstract: ABSTRACT OF THE DISCLOSURE             The  control  circuit  device  of  a  reverse osmosis drinking water machine is provided with a microcomputer unit controlling the  working of various peripheral circuits and enabling the drinking water machine to   determine  the  quality of  the  drinking  water  and  to  clean automatically the filtration elements of the basis of  the  determined quality of the drinking water . The device is further provided with an output unit capable of giving an advance warning to remind the user of need to replace the worn-out filtration elements .  The output unit is also  capable  of  terminating  automatically the water-making process when the PPM value of the drinking water so made is not in  conformity with the health standard.
Patent CA-2137779-A1 (CA)
Title: Purification of kringle containing proteins, and especially t-pa
Inventor: JOHANNESSEN MARIE
IPC: C12N9/64
Filed: 1993-06-23
Abstract: Kringle containing proteins capable of binding to .omega.-amino acids can selectively be eluted from an ion exchange column by means of .omega.-amino acids.